package com.cs.handler;

import com.cs.exception.BaseException;
import com.cs.result.Result;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理器，处理项目中抛出的业务异常
 */
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 捕获业务异常
     * @param ex
     * @return
     */
    @ExceptionHandler
    public Result exceptionHandler(BaseException ex){
        log.error("异常信息：{}", ex.getMessage());
        return Result.error(ex.getMessage());
    }

    /**
     * 处理sql异常
     * @param exception
     * @return
     */
    @ExceptionHandler
    public Result exceptionHandler(SQLIntegrityConstraintViolationException exception)
    {
        String message = exception.getMessage();
        if (message.contains("Duplicate entry"))
        {
            String[] msg = message.split(" ");
            String username = msg[2];
            String m = username+ "用户名已存在";
            return  Result.error(m);
        }else
        {
            return Result.error("错误");
        }
    }


}
